Modified AF tester to improve audio dropouts

src/TEF6686.cpp

@@ -90,6 +90,7 @@ uint16_t TEF6686::TestAF() {
       }
       af[x].score = aflevel - afusn - afwam;
       if (afoffset < -125 || afoffset > 125) af[x].score = -32767;
+      delay(10);
     }
 
     int16_t highestValue = af[0].score;
@@ -2089,4 +2090,4 @@ String TEF6686::ucs2ToUtf8(const char* ucs2Input) {
     }
   }
   return utf8Output;
-}
+}